The origin of big data is "Internet". Big data industry refers to the information service industry based on data storage, value refining, intelligent processing and distribution on the basis of collecting a large number of data resources from Internet, Internet of Things, cloud computing and other channels. With the advancement of intelligent manufacturing, artificial intelligence technology has also developed rapidly. The biggest application of big data is reflected in artificial intelligence technology, because big data emphasizes not causality, but correlation. Through the analysis of a series of data, we can judge whether there is correlation and promote the promotion of intelligent manufacturing. This article popularized the ins and outs of "big data". The concept of big data originally originated in the United States, and was developed by Cisco, Veritas Software, Oracle Bone Inscriptions, IBM and other companies. Since about 2009, "big data" has become a hot word in the Internet information technology industry. In fact, the big data industry refers to the information service industry based on data storage, value refining, intelligent processing and distribution on the basis of a wide range of channels such as the Internet, Internet of Things and cloud computing. Most big data companies are committed to enabling all users to get insights from almost any data that can be transformed into business execution, including insights previously hidden in unstructured data.